Math, asked by yana85, 11 months ago

without using trigonometric tables, evaluate

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Answered by anjliswamy03
1

Answer:


Step-by-step explanation:


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anjliswamy03: Ur welcome
Answered by PSN03
1

cos^2 70=sin^2 20

sin^2 31=cos^2 59

also sin^2x + cos^2x=1

therefore on simplifying your answer would be 1


PSN03: welcome
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